Show recommended TI parts with an expandable MCP JSON response

[imrishabh18]

Summary

• Keep Recommended badges on matching local subcircuits and show distinct wider-portfolio recommendations alongside the selectable parts.
• Add a collapsed-by-default MCP response row that expands the complete, formatted tool-response JSON without changing the selected part.
• Fix the live proxy request by removing the unsupported format=details parameter and parsing conversation.response product findings. Preserve legacy recommendation-array support, deduplicate repeated findings, and retain the full MCP payload for inspection.
• Cache both recommendations and their JSON, show HTTP failures without blocking local part selection, and add regression coverage for parsing, badge matching, caching, and retries.

Verification

• cd system-block-ui && bun test — 77 tests passed.
• cd system-block-ui && bun run build — passed (existing large-chunk warning).
• Biome formatting checks and git diff --check — passed.
• Browser checks with the live TI proxy: recommended badges, description expansion, JSON expand/collapse by click and keyboard, preserved current-part selection, and Escape to close the picker.
• Confirmed MCP error payloads remain inspectable when the upstream service returns no product findings.

This PR preserves both recommendation badges and MCP-response inspection; it does not modify the separate MCP-only proposal in #231.

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Project	Deployment	Actions	Updated
ti-system-block-ui	Ready	Preview	Sep 3, 2026 4:21pm UTC

[tscircuitbot]

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PR Rating: ⭐⭐⭐
Impact: Major

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